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Mineral Industry Surveys For information, contact: David E. Guberman, Lead Commodity Specialist National Minerals Information Center U.S. Geological Survey 989 National Center
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Document Date: 2016-01-28 17:49:39
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Mineral Industry Surveys For information, contact: David E. Guberman, Lead Commodity Specialist National Minerals Information Center U.S. Geological Survey 989 National Center